YOU SAID:
I'm not sure the translator is working properly.
INTO JAPANESE
翻訳者が正しく働いているかどうかはわかりません。
BACK INTO ENGLISH
I do not know if the translator works properly.
INTO JAPANESE
翻訳者が正しく動作するかどうかはわかりません。
BACK INTO ENGLISH
I do not know if the translator works properly.
You've done this before, haven't you.